A 3.00-kg object traveling 20.0 m/s west collides with a 5.00-kg mass object traveling 12.0 m/s west. The collision is perfectly elastic, what is the velocity of the 3.00-kg object after the collision?
A)
20.0 m/s east
B)
8.00 m/s west
C)
12.0 m/s west
D)
12.0 m/s east
E)
10.0 m/s west
E
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Which type of force would be the equal and opposite force to a gravitational force?
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A crystal diffracts a beam of electrons, like a diffraction grating, as they hit it perpendicular to its surface
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Fill in the blank(s) with correct word